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10. A cannon elevated at an angle of 35º to the
horizontal fires a cannonball, which travels the path
shown in the diagram below. [Neglect air resistance and
assume the ball lands at the same height above the
ground from which it was launched.]
If the ball lands 7.0 × 10² meters from the cannon 10.
seconds after it was fired, what is the horizontal
component of its initial velocity?
(A) 7.0 m/s (B) 35 m/s (C) 49 m/s (D) 70. m/s

  • physics -

    The horizontal component of velocity remains constant, so divide 700 m by 10 s.

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